hrvatski jezikClear Cookie - decide language by browser settings

Charge Carrier Dynamics in Materials with Disordered Structures: A Case Study of Iron Phosphate Glasses

Šantić, Ana; Moguš-Milanković, Andrea (2012) Charge Carrier Dynamics in Materials with Disordered Structures: A Case Study of Iron Phosphate Glasses. Croatica Chemica Acta, 85 (3). pp. 245-254. ISSN 0011-1643

[img] PDF - Published Version
Download (6MB)

Abstract

Materials with disordered structures have a crucial role in the rapid development of new technologies. Improvement of these materials for particular application, as well as preparation of novel composites is based on a thorough understanding of the basic mechanisms of charge carrier transport. Among various classes of structurally disordered materials, a family of iron phosphate glasses attracts special attention due to their unique combination of structural, electrical and mechanical properties. Generally, iron phosphate glasses are electronically conducting glasses with polaronic conduction mechanism where conduction takes place by electrons hopping from Fe2+ to Fe3+. Consequently, polaron transport directly depends on Fe2+/Fe-tot, ratio and overall Fe2O3 content. However, by altering composition (addition of Cr2O3, MoO3, PbO, Na2O) and preparation conditions, the electrical conductivity of iron phosphate based glasses may vary over many orders of magnitude. This paper gives an overview of our recent studies of electronic and ionic transport in iron phosphate based glasses.

Item Type: Article
Uncontrolled Keywords: iron phosphate glasses; electrical properties; structure; Al2O3 and/or Fe2O3; impedance spectroscopy; electrical-properties; conductivity; transport; behavior; ions
Subjects: NATURAL SCIENCES > Chemistry
Divisions: NMR Center
Projects:
Project titleProject leaderProject codeProject type
Utjecaj strukture na električna svojstva (bioaktivnih) stakala i keramike[78861] Andrea Moguš-Milanković098-0982929-2916MZOS
Depositing User: Ana Šantić
Date Deposited: 11 Oct 2013 11:30
Last Modified: 07 Feb 2014 09:54
URI: http://fulir.irb.hr/id/eprint/775
DOI: 10.5562/cca1989

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year